CN104864792A - Method for measuring offset of center line of vertical roller - Google Patents
Method for measuring offset of center line of vertical roller Download PDFInfo
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- CN104864792A CN104864792A CN201410066785.2A CN201410066785A CN104864792A CN 104864792 A CN104864792 A CN 104864792A CN 201410066785 A CN201410066785 A CN 201410066785A CN 104864792 A CN104864792 A CN 104864792A
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- edger roll
- vertical roller
- transmission side
- center line
- roll
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Abstract
The invention provides a method for measuring offset of a center line of a vertical roller. The method comprises the steps that: a fixed baseplate and two length scales with graduations and clamping grooves are manufactured respectively; the fixed baseplate is placed on a lower roller ring of a transmission side vertical roller, and the clamping grooves of the two scales are clamped on the fixed baseplate; scale readings are recorded when distances from the two scales to a vertical roller bridge are equal; distance from the highest point on the inner side of the roller surface of the transmission side vertical roller to the vertical roller bridge is obtained by subtracting diameter of the transmission side vertical roller from the scale readings, and the distance is denoted by L3; and distance from the highest point on the inner side of the roller surface of a working side vertical roller to the vertical roller bridge is measured in the same way, and the distance is denoted by L4; (L3-L4)/2 is the offset of a center line of the vertical roller, if the offset is a positive number, then the center line of the vertical roller deviates towards the transmission side, and if the offset is a negative number, then the center line deviates towards the working side; and the integral vertical roller just needs to be moved towards the offset direction of the center line by (L3-L4)/2. The method can guarantee the measurement accuracy of offset of the center line of the vertical roller, improves the calibration and control precision of the vertical roller, and avoids the lateral bending defect of slabs.
Description
Technical field
The invention belongs to steel rolling process technical field, particularly relate to a kind of method accurately can measuring hot strip rolling mill edger roll disalignment amount.
Background technology
The roughing mill of the 2150mm production line of equipment of Hot Strip Mill is with front and back edger roll, and the Main Function of edger roll is that tune is wide.But due to equipment control accuracy problem, edger roll after a period of operation center line can offset, namely the center line of edger roll and the center line of mill housing be not on same straight line, and the trend of the disalignment of front and back edger roll is inconsistent, slab will be caused like this in the operation of rolling easily to occur lateral bending, thus it is unstable to affect finishing rolling step rolling below, affects finish rolling material shape and wedge shape precision simultaneously.Therefore roughing vertical roll needs periodic calibrating, the deviation of center line to be made up.But the prerequisite of demarcating needs accurately to know that the side-play amount of center line is how many, thus just needs opposite roller disalignment amount to measure.
At present, the method for edger roll disalignment measurement amount is the deviation that distance L1 and L2 by measuring transmission side edger roll and active side edger roll roll surface and the edger roll bridge of the nose carrys out computing center's line.But, if will ensure to measure accurately, just must find the peak inside two edger roll roll surfaces, but at present just by eye estimate, therefore there is certain error in matter measuring accuracy.
Summary of the invention
The present invention aims to provide one can ensure that edger roll centerline deviation is measured accurately, thus improves the measuring method of the edger roll disalignment amount of edger roll control accuracy.
For this reason, the solution that the present invention takes is:
A measuring method for edger roll disalignment amount, its concrete grammar and step are:
1, survey instrument is made:
A, select the corrosion resistant plate of a block length 1500-1550mm, width 48-53mm, thickness 4-6mm as fixing base;
B, select two length be 2000-2100mm stripe board as scale, process the draw-in groove of a degree of depth 28-32mm, width 1mm larger than fixing base thickness in scale one end respectively, with draw-in groove inner side edge for starting point, blade identify length scale.
When 2, measuring, fixing base is put on the lower collars outside transmission side edger roll, then the draw-in groove of two scales is snapped onto on fixing base, and make two scales abut in transmission side edger roll both sides.
3, adjust two scales to the edger roll bridge of the nose apart from time equal, record rod reading; Now outside fixing base and transmission side edger roll, roll surface contact point is the peak in the edge-on roller direction of vertical-transmission.
4, rod reading is deducted transmission side edger roll diameter, namely obtain the distance between peak and the edger roll bridge of the nose inside transmission side edger roll roll surface, be denoted as L3.
5, same, record the distance inside active side edger roll roll surface between peak and the edger roll bridge of the nose according to step (2), (3), (4), be denoted as L4.
6, (L3-L4)/2 are edger roll disalignment amount, if side-play amount is positive number, edger roll actual center line deflection transmission side is described, side-play amount is negative, be then partial to active side.
7, timing signal, by overall for the edger roll reverse direction translation (L3-L4)/2 to disalignment.
Beneficial effect of the present invention is:
The present invention can guarantee the accuracy of edger roll disalignment measurement amount, thus improves edger roll demarcation and control accuracy, avoids the lateral bending defect of slab, improves plate shape qualification rate.
Accompanying drawing explanation
Fig. 1 is edger roll disalignment amount instrumentation plan.
In figure: fixing base 1, draw-in groove 2, transmission side edger roll 3, scale 4, the edger roll bridge of the nose 5, active side edger roll 6.
Embodiment
1, fixing base and scale is made:
A, by the corrosion resistant plate of a block length 1500mm, wide 50mm, thick 5mm, as fixing base 1 after surface working.
B, select two length be 2000mm stripe board as scale 4, process the draw-in groove 2 of a dark 30mm, wide 6mm in one end of scale 4 respectively, with draw-in groove 2 inner side edge for starting point, the blade of scale 4 identify length scale.
When 2, measuring, fixing base 1 is put on the lower collars outside transmission side edger roll 3, then the draw-in groove 2 of two scales 4 is snapped onto on fixing base 1, and make two scales 4 abut in the both sides of transmission side edger roll 3.For avoiding the excesssive gap between draw-in groove 2 and fixing base 1 to cause scale 4 and fixing base 1 out of plumb, can rubber after fixing base 1 and draw-in groove 2 contact site wrap up one piece of 0.5mm, to guarantee that draw-in groove 2 is tight with coordinating of fixing base 1.
3, two scales 4 are adjusted, until when two scales 4 are equal with the distance of the edger roll bridge of the nose 5, record the reading of scale 4; Now outside fixing base 1 and transmission side edger roll 3, roll surface contact point is the peak in the edge-on roller direction of vertical-transmission.
4, scale 4 reading is deducted transmission side edger roll 3 diameter, namely obtain the distance between peak and the edger roll bridge of the nose 5 inside transmission side edger roll 3 roll surface, be denoted as L3.
5, same, record the distance inside active side edger roll 6 roll surface between peak and the edger roll bridge of the nose 5 according to step 2,3,4, be denoted as L4.
6, (L3-L4)/2 are edger roll disalignment amount, if L3 > is L4, side-play amount is positive number, and edger roll actual center line deflection transmission side is described; If L3 < is L4, side-play amount is negative, then edger roll center line deflection active side.
7, timing signal, by overall for the edger roll reverse direction translation (L3-L4)/2 to disalignment.
Claims (1)
1. a measuring method for edger roll disalignment amount, is characterized in that:
(1), survey instrument is made:
A, select the corrosion resistant plate of a block length 1500-1550mm, width 48-53mm, thickness 4-6mm as fixing base;
B, select two length be 2000-2100mm stripe board as scale, process the draw-in groove of a degree of depth 28-32mm, width 1mm larger than fixing base thickness in scale one end respectively, with draw-in groove inner side edge for starting point, blade identify length scale;
(2), measure time, fixing base is put on the lower collars outside transmission side edger roll, then the draw-in groove of two scales is snapped onto on fixing base, and make two scales abut in transmission side edger roll both sides;
(3), adjustment two scales to the edger roll bridge of the nose apart from time equal, record rod reading; Now outside fixing base and transmission side edger roll, roll surface contact point is the peak in the edge-on roller direction of vertical-transmission;
(4), by rod reading deduct transmission side edger roll diameter, namely obtain the distance between peak and the edger roll bridge of the nose inside transmission side edger roll roll surface, be denoted as L3;
(5), same, record the distance inside active side edger roll roll surface between peak and the edger roll bridge of the nose according to step (2), (3), (4), be denoted as L4;
(6), (L3-L4)/2 are edger roll disalignment amount, if side-play amount is positive number, edger roll actual center line deflection transmission side is described, side-play amount is negative, be then partial to active side;
(7), timing signal, by overall for the edger roll reverse direction translation (L3-L4)/2 to disalignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066785.2A CN104864792B (en) | 2014-02-26 | 2014-02-26 | A kind of measuring method of edger roll disalignment amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066785.2A CN104864792B (en) | 2014-02-26 | 2014-02-26 | A kind of measuring method of edger roll disalignment amount |
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| Publication Number | Publication Date |
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| CN104864792A true CN104864792A (en) | 2015-08-26 |
| CN104864792B CN104864792B (en) | 2017-09-08 |
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| CN201410066785.2A Active CN104864792B (en) | 2014-02-26 | 2014-02-26 | A kind of measuring method of edger roll disalignment amount |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436216A (en) * | 2016-01-07 | 2016-03-30 | 河北钢铁股份有限公司邯郸分公司 | Mill roll system stability online detecting device |
| CN112453072A (en) * | 2020-10-31 | 2021-03-09 | 广西柳州钢铁集团有限公司 | Method for measuring vertical roll centering of roughing mill |
| CN114101779A (en) * | 2017-03-31 | 2022-03-01 | Ｊｘ金属株式会社 | Strip-shaped metal material, slitting method, and meandering measurement method for strip-shaped material |
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| CN200988053Y (en) * | 2006-12-20 | 2007-12-12 | 宝山钢铁股份有限公司 | Vertical roller marker |
| CN201227651Y (en) * | 2007-12-06 | 2009-04-29 | 鞍钢股份有限公司 | Vertical roll gap calibration apparatus for hot strip steel rolling mills |
| CN202290771U (en) * | 2011-09-30 | 2012-07-04 | 鞍钢股份有限公司 | Multi-functional vertical roll calibration ruler |
| CN202676073U (en) * | 2012-06-15 | 2013-01-16 | 鞍钢股份有限公司 | Multifunctional vertical roll calibration tool |
| CN103191924A (en) * | 2012-01-05 | 2013-07-10 | 鞍钢股份有限公司 | Method for calibrating center line of guide ruler |
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2014
- 2014-02-26 CN CN201410066785.2A patent/CN104864792B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200988053Y (en) * | 2006-12-20 | 2007-12-12 | 宝山钢铁股份有限公司 | Vertical roller marker |
| CN201227651Y (en) * | 2007-12-06 | 2009-04-29 | 鞍钢股份有限公司 | Vertical roll gap calibration apparatus for hot strip steel rolling mills |
| CN202290771U (en) * | 2011-09-30 | 2012-07-04 | 鞍钢股份有限公司 | Multi-functional vertical roll calibration ruler |
| CN103191924A (en) * | 2012-01-05 | 2013-07-10 | 鞍钢股份有限公司 | Method for calibrating center line of guide ruler |
| CN202676073U (en) * | 2012-06-15 | 2013-01-16 | 鞍钢股份有限公司 | Multifunctional vertical roll calibration tool |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436216A (en) * | 2016-01-07 | 2016-03-30 | 河北钢铁股份有限公司邯郸分公司 | Mill roll system stability online detecting device |
| CN105436216B (en) * | 2016-01-07 | 2017-08-25 | 河北钢铁股份有限公司邯郸分公司 | A kind of roller system of rolling mill stability on-line measuring device |
| CN114101779A (en) * | 2017-03-31 | 2022-03-01 | Ｊｘ金属株式会社 | Strip-shaped metal material, slitting method, and meandering measurement method for strip-shaped material |
| CN112453072A (en) * | 2020-10-31 | 2021-03-09 | 广西柳州钢铁集团有限公司 | Method for measuring vertical roll centering of roughing mill |
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| Publication number | Publication date |
|---|---|
| CN104864792B (en) | 2017-09-08 |
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